By Guy Faulconbridge and Felix Light LONDON (Reuters) -A Russian-installed official in Ukraine on Thursday suggested President Vladimir Putin’s defence minister should consider killing himself due to the shame of the defeats in the Ukraine war, an astonishing public insult to Russia’s top brass. After more than seven months of war in Ukraine, Russia’s most basic war aims are still not achieved while Russian forces have suffered a series of battlefield defeats in recent months, forcing Putin to announce a partial mobilisation. In a four-minute video message, Kirill Stremousov, the Russian-insta…